18991030

素因数分解:

$2^1\times 5^1\times {\mathrm{101}}^1\times {\mathrm{18803}}^1$

素因数の和:18911

約数の個数: 16

約数和(自身を含む): 34524144

約数和(自身を除く): 15533114

約数列:

[1, 2, 5, 10, 101, 202, 505, 1010, 18803, 37606, 94015, 188030, 1899103, 3798206, 9495515, 18991030]

約数ペア:

[(1, 18991030), (2, 9495515), (5, 3798206), (10, 1899103), (101, 188030), (202, 94015), (505, 37606), (1010, 18803)]